Spring box



. V. ANGERER.

SPRING BOX.

APPLICATION FILED IULY 30.1921.

Patented Apr. 4, 1922.

wwe x,

UNITED STATES PATENT OFFICE.

vieron ANGERER, or RIDLEY PARK, PENNSYLVANIA, AssIeNoR To WILLIAM WHARTON, an. a oo., iNooRroaAfrEn, oEEAzsToN, PENNSYLVANIA, A conro- RATION OF PENIDiI'S'I'LVANAt srnINo B0X. n

rameau.

Application filed uy 30, 1921.

To LZZ whom t may concern.'

Be it known that l, Vieron Anoniem, a citizen oit' the United States, residing at Ridley Park, inthe county of Delaware and State oi Pennsylvania, have invented certain new and useit'ul Improvements in Spring Boxes, ot which the following is a speciiication.

This invention relates to an improvement in spring boxes for tongue switches in track work wherein the switch tongue is manually and without the necessity' ot removing any portion'4 thereof. i n

T he invention generally stated involves a rocker throw element which is readily aocessible through the top or cover ot the box, and which can be shifted on its bearings from one position to the other through the use of an ordinary bar without the necessity of removing any part of the box. The rocker cooperates with the yoke to shit't the latter from one position to the other, the yoke in turn compressing a spring in its particular movement to exert endwise pressure on the rod connected tok the switch tongue, and thereby shittthe latter in the direction ot such pressure.

ln the drawings:

Fig. l is a vertical sectional view of the improved spring box,

Fig. 2 is a section on line 2 2 of Fig. l.

The improved box l is of substantially the ordinary type, having a cover 2 adapted for convenient removal when necessary. The switch tongue is connected by a rod l to the switch operating mechanism. This rod extends within and longitudinally oi' the boX l, and at spaced intervals is provided with relatively free spools 5 and 6, adapted to be adjusted in their` limit movement in opposite directions relative to the rod through nuts 7 threaded on the rod. The relatively inner, that is, the proximate ends oiE the respective spools, have annular pro- Specication of -.Letters Patent.

ratentea'Ap'r. 4,1922.

serial 110.488,661.

`iecting heads 8 and9 respectively, between 'which there is arranged a spring element l0 coiled about the rod. Thus, normally, the spools are held at the respective limits of movement permitted by the nuts 7, throughy the spring l0. i

A yoke ll is slidablymounted inthe box having` at the respective ends, upstanding walls L2l and 13 formed with openings l-l to lslidably receive the spools 5 and 6, the walls of these openings engaging the respective heads 8 and 9 ot the spools, so that the yoke,

walls or ends are arranged beyond the `respective spool heads to thereby compela movement yoit' eitherspool inthe direction .of the yoke, the yoke sliding freely 'on the spool nut operated in such movement.` The yoke;

is provided at each end with upstanding abutments 15 and 16 respectively.` The edges ot these abutments toward the trans-U verse center of the yoke, that is, their inner edges, are formed with curvedsurtaces 17 tor a portion or" thelrlength, andrecessed or curved bases 18 at their lower ends. The

elements 17 serve as operating faces for the yoke, while theelemenjts 18 serve as locking recesses for thel yoke,

rlhe operation of the yoke is provided for through a rocker element 19 in the ormof an arcuate transverse plate 20, having a substantial recess 2l, preferably of angular formation. The rocker includes side plates 22 depending from the plate 20, and having at their lower ends outwardly and laterally arranged trunnions 23, which are aocommodated in bearings 24: formed in thefside walls oie the box l. Theupper edges of the side plates 22 of the rocker are rounded at 25 to form bearing projections tor cooperation with the faces oi' the yoke projections previously described.

rEhe top of the box is formedby complemental cover plates 2, spaced relatively to provide a gap 27, through which is exposed the arcuate plate 2O ot the rocker element, the under proximate edges of the cover plates being controverted, as at 26, in coincidence with the curvature ot plate 20. The length of the gap is such that in the relatively opposite positions of the rocker, the recess 2l is at all times fully exposed through the gap 27. The top edges oi' the cover plates may. it' desired, be bevelled as at 28, and the proportions are such, that in the relatively opposite positions of the rocker, one wall of the recess 21 is coincident with the edge of the gap 27 defined by the bet/entitle e '28, so that the latter forms a guide for e convenient introduction of a switch iron. l

. In operation, it will be apparent that i order to throw thev switch, a switch iron is itrhodn'to the recess 2l of the rocker, and the latter swung on` its trumiions to the opposite direction. This causes the operatingeee of the rocker, which moves downvalidly :in this operation of the rocker, to ride on `the yface `i7 of the adjacent yoke ehutmonts, and .in so riding force the yoke longitudinally. In this movement, the spool opposite thel end of the yoke being operated,

tirait is, the s ol 6 according to the present isV mnedby thefyoke `to compress t'hespring i0, this compression continues until` thetension ofthe spring overcomes the weight of the switch and connected parts, sind so shifts the switch tongue.

'n the final movement of the rocker, the projection 25 rides into the recess 1B of the particuilar rocker abutment being en, and so temporarily locks the part-s iniltie set positions.

" @bvlonsly the switch tongue, when set in one position or the other, may readily yield ine reverse travel of the car, as neither spoollfis confined by the yoke, and in such reverse travel, the rod 4 will move, and the yoke "engaged by the `nuts 7 according `to the jdirectionlof movement, will force. the cor- 3B" responding spool to compress the spring i0, the opposite spool being held by the yoke.

After the car passes the switch, thesliring being compressed in this movement ot'- the Switchpoint retnrnsthe switch point to its prervionsset position.

llt is apparent that the switch may be adjusted to either operative position through appropriate movement of the rocker element,

andthe latter may be operated through any element capable of entering the recess21, and

having a length suicient to provide for throwing the rocker element. Thus a change in the switch is readily and conveniently accomplished without the necessity of removing any portion of the switch box, and without loss of time in such operation. The

.rocker element is, of course, desi ned to fit more or less snugly in the gap 1n the top of the switch box.

It is, of course, apparent that while two spaced abntments at each end of the yoke is gage said face to operate the yoke, andto sewt in said rece to lock the yoke in the operating position.

2. A. spring box for switch tongues, including the yoke for operating the switch tongues in either direction, said yoke having am abutment formed with an operating face vand with a locking recess, and a rocker ele ment having an operating projection to en gage said` face to operate the yoke and to seat in. said recess to lock the yoke in the operatiling position, said rocker element having a recess accessible through the top of the box to receive `an `operating bar.

3. A sprin box for switch tongues, ineluding a yoke or operating the switch tongue in either direction, said' yoke. having an aliutment formed with an operating face and a `locking recess, and a rocker element having an operating projection to engage said face to operate the yoke, and to seat in said recess to lock the yoke in the operating position, the topof the box being formed by complemental cover plates with an intervening gap, t-hmughwhich the rocker element is at all times accessible.

In testimony whereof I affix m signature.

VICTOR Ai GERER. 

